Connected: An Internet Encyclopedia
RFC 1213 - 3.12. The Transmission Group

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### 3.12. The Transmission Group

MIB-I was lacking in that it did not distinguish between different types of transmission media. A new group, the Transmission group, is allocated for this purpose:

          transmission OBJECT IDENTIFIER ::= { mib-2 10 }

When Internet-standard definitions for managing transmission media are defined, the transmission group is used to provide a prefix for the names of those objects.

Typically, such definitions reside in the experimental portion of the MIB until they are "proven", then as a part of the Internet standardization process, the definitions are accordingly elevated and a new object identifier, under the transmission group is defined. By convention, the name assigned is:

          type OBJECT IDENTIFIER ::= { transmission number }

where "type" is the symbolic value used for the media in the ifType column of the ifTable object, and "number" is the actual integer value corresponding to the symbol.

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Connected: An Internet Encyclopedia
RFC 1213 - 3.12. The Transmission Group